Introduction - If you have any usage issues, please Google them yourself
		 
Fuzzy partitional clustering algorithms are widely used in pattern recognition field. Until now, more 
and more research results on them have been developed in the literature. In order to study these algorithms 
systematically and deeply, they are reviewed in this paper based on c-means algorithm, from metrics, entropy, and 
constraints on membership function or cluster centers. Moreover, the advantages and disadvantages of the typical 
fuzzy partitional algorithms are discussed. It is pointed out that the standard FCM algorithm is robust to the scaling 
transformation of dataset, while others are sensitive to such transformation. Such conclusion is experimentally 
verified when implementing the standard FCM and the maximum entropy clustering algorithm. Finally, the 
problems existing in these algorithms and the prospects of the fuzzy partitional algorithms are discussed.